Primality testing 2^72000+49443 [N-1/N+1, Brillhart-Lehmer-Selfridge]
Running N-1 test using base 2
Running N-1 test using base 3
Running N+1 test using discriminant 13, base 2+sqrt(13)
Calling N+1 BLS with factored part 0.04% and helper 0.03% (0.16% proof)
2^72000+49443 is Fermat and Lucas PRP! (110.0486s+0.0025s)

To be completed...